The Plows air/liquid adapter set permits fast filling of tires for ballast purposes. This 3 piece set is made from heavy, chrome plated brass. Allows you to replace the air in a tire, tube, or other air valve equipped vessel, with water - perfect for ballasting purposes. Manual bleeder valve allows you to bleed air out as tire fills with water. Main fitting has a female garden hose thread on one end, for connection to a standard hose or hose bib, and . 482-26 female threads on the other end for air/liquid valves. Also includes a bushing to fit . 305-32 valve cap threads of standard tire valves and an additional bushing to fit . 406-26 threads of old style air liquid valves. Plows Manufacturing and Sales Corporation was originally founded by R. G. Plows in 1927. At that time, the railroad industry was the primary focus for the company's extensive line of oil cans. As the transportation industry went from trains to passenger cars and trucks, Plows shifted their focus to developing the tools necessary to service this new mode of transportation. Fast forward 90 years and Plows has become part of Plows & Edelman. Today, Plows & Edelman is a leading designer, manufacturer and distributor of a broad range of automotive parts and tools sold to the vast majority of mass merchant, retail auto parts stores and wholesale automotive parts and industrial distribution outlets, worldwide.